conduction and convection

conduction is the trancefere of energy through the movement of particles that are in contact with each other or when hot particles move into cold particles.there are different types conduction like:heat,eletrical,sound.

convection is the heat trancefered by mass motion of a liquid, when the liquid is heated it carrys energy with it. convection accures when a fluid is above a hot surface and the hot air expands, becomes less dense and rises